Technical explanation
Back-contact architecture differs from substrate doping and passivation processes. N-type and P-type variants exist. The absence of a front contact grid does not mean that all incident light is converted into electricity.
Definition · Technology
IBCInterdigitated Back Contact — integral back contact
TL;DR
IBC cells place electrical contacts on the rear. This removes front contact grids but does not guarantee universal efficiency or cost advantages.
Definition
IBC means Interdigitated Back Contact. Contacts of different polarities are interleaved on the rear of the cell.
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Power
Per datasheet
🌡️
Temperature
Model coefficient
📉
Degradation
Read warranty
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Cost
Full quote
Swiss context
On a small roof, compare installable capacity, dimensions and simulated output. Check model, weight, warranty and installed price; black finish alone does not prove IBC technology.
Related terms
Related guides
FAQs — IBC
Does the IBC really produce more than the TOPCon?+
Compare two exact models on the same roof. Area, capacity, temperature and shading affect results; a technology label does not set annual gains.
Is the IBC worth the extra cost for a standard Swiss installation?+
Weigh the premium against extra kWh, warranties and desired integration. A standard roof neither requires nor rules out the architecture; the full quote must justify the choice.
Sources & method
Check equipment values in the offered model’s datasheet and warranty terms. Confirm grant, permit and connection requirements with the responsible programme, municipality and grid operator.
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Estimate output, avoided purchases and payback using your data. Confirm the assumptions in a quote.
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